The present invention relates to a social expert search system. The social expert search system includes: a user terminal which includes an address book with contact information of other users and receives the profile information including the fields of a users expertise; and a management server which is a computing apparatus for exchanging information through a wired/wireless communications with two or more of the user terminals and builds a user DB by receiving the address book and the profile information from two or more of the user terminals. When one of the user terminals (search request terminal) requests to search for users with specific conditions to the management server, the management server searches through the user DB and provides the profile information and address book of the users corresponding to the specific conditions to the search request terminal.
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